The world is currently grappling with three key issues: population, resources, and the environment, with water resources playing a crucial role. China, as a major agricultural nation facing water scarcity, is particularly affected by inefficient agricultural irrigation. This has limited agricultural development, making water-saving agriculture a priority. Since 2010, agricultural water conservancy research has been initiated, exploring the environmental effects of water-saving irrigation. Leading multiple projects, including the Postdoctoral Science Foundation of China and Fujian Provincial Science Foundations, my team has achieved significant results, including provincial awards and invention patents. This monograph summarizes recent advances in water-saving irrigation technology, offering valuable insights for researchers, educators, and students in agriculture-related fields. Though a program in agricultural water conservancy remains absent, the gap is especially evident in the research on irrigation and water management for specific crops and landscapes in Fujian Province. This book aims to deliver the following messages to its readers:
- focusing on the application of water-saving irrigation technology in agricultural production
- suggesting suitable irrigation modes for multiple agricultural systems
- highlighting impacts of irrigation technology on agriculture
- establishing a future discipline of agricultural water conservancy
Chapter 1 Introduction 0
1.1. Water-Saving Irrigation Technique 1
1.2. Integrated Irrigation Technology 4
1.3. Effects of Water-Saving Irrigation on Agro-System 9
Chapter 2 Effects of Irrigation and Drainage on Agricultural System in Saline Soil 0
2.1. Effects of Drip Irrigation on Agricultural System in Saline Soil Combined with Surface Drainage 13
2.2. Optimization of Irrigation and Surface-Drainage Scheme for Agricultural System in Saline Soil 26
2.3. Effects of Controlled Irrigation on Agricultural System Combined with Subsurface Drainage 36
Chapter 3 Effects of Irrigation and Fertilization on Agricultural System 0
3.1. Effects of Irrigation and Inorganic Fertilization Treatments on Agricultural System 46
3.2. Effects of Drip Irrigation and Organic Fertilization on Agricultural System 57
Chapter 4 Application of Alternate Partial Root Zone Irrigation Technology in Water-saving and nitrogen Nitrogen-reducing Agriculture 0
4.1. Growth, Water Use and Nitrate-15N Uptake of Greenhouse Tomato as Influenced by Different Irrigation Patterns, 15N Labeled Depths and Transplant Times 67
4.2. Fate of 15N in the Subsequent Growing Season of Greenhouse Tomato (Lycopersicon esculentum Mill) as Influenced by Alternate Partial Root-zone Irrigation 89
Chapter 5 Suitable Irrigation Mode and Precision Irrigation Regime in Agricultural System 0
5.1. Effects of Different Irrigation Modes on Nitrogen Cycling in Tomato Production System 98
5.2. Precision Irrigation Scheduling for Greenhouse Tomato Based on Analysis of Environmental Characters and the Penman-monteith Model 108
5.3. A Simple Method to Estimate Tobacco LAI and Soil Evaporation 117
Chapter 6 Application of Brackish Water Irrigation in Water-saving Agriculture 0
6.1. Impact of Different Water Salinities and Waterlogging Durations on Growth, Physiological Attributes and Yield of Maize in Filling Stage 127
6.2. Effect of Saline Water on Tomato Yield, Quality, Blossom-end Rot Incidence by Drip Irrigation 137
6.3. Soil Salt Distribution and Tomato Response to Saline Water Irrigation under Straw Mulching 152
References 164
Awards 166
